Group problem

So i tried to post old leatherworking mats but for some reason it posted all but 2. exotic leather and heavy hides. they are all in the same group but for some reason those 2 wont show me auctioning prieces (min/average/max) as the others all do? can anyone help me pls?
so on the pictures u can see that exotic leather is in the same group as all my old mats but its with hevy hide the only one not getting posted.